JPH0625577Y2 - Cylinder lock with knob - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of use) The present invention relates to a cylinder lock with a knob for opening and closing an opening / closing body such as a trunk lid or a rear door of an automobile provided with a cylinder lock by operating a knob.

(Prior Art) Conventionally, when opening and closing a trunk lid or a rear door of an automobile, a key is inserted into the trunk lid in a locked state, and a cam plate arranged at the rear end of the cylinder lock is swung by key operation to swing the door. In general, the lock is unlocked so that the trunk lid etc. can be opened, and then the key operation described above must be performed again to open the trunk lid etc. is there.

(Problems to be solved by the invention) However, in the cylinder lock having such a structure, when it is necessary to frequently open and close the trunk lid, the rear door, etc., it is necessary to perform key operation many times in succession. There is a defect that a person feels trouble in opening and closing the trunk lid and the like.
Therefore, in order to solve the above-mentioned drawbacks, a knob is attached to the front end of the cylinder lock, and the cam plate placed at the rear end of the cylinder lock can be rotated by rotating the knob without the need to perform key operation to open the trunk lid etc. Various cylinder locks with knobs have been devised that allow swinging to open the trunk lid and the like.

(Means for Solving Problems) The present invention provides a novel structure of a cylinder lock with a knob that achieves the above object.

That is, according to the present invention, the knob is axially and rotationally fixed to the cylinder lock inner cylinder via the pin, and the circumferential groove for guiding the pin from the locking position to the door closing position is provided on the cylinder lock outer cylinder. It is provided.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a left side sectional view of a cylinder lock with knob according to the present invention, FIG. 2 is a left side view of a cylinder lock with knob, FIG. 3 is a perspective view when assembling the cylinder lock, and FIG. The front view of the figure and FIG. 5 are sectional views taken along the line AA of FIG.
(a) is the locked position and (b) is the unlocked position. FIG. 6 is a sectional view taken along the line BB in FIG. 2, in which (a) is a locked position and (b) is an unlocked position. FIG. 7 is C- of FIG.
It is C sectional drawing, (a) is a locking position among them, (b) is an unlocking position, (c) is an opening position.

In FIG. 1, 1 is a cylinder lock outer cylinder, 2 is a cylinder lock inner cylinder, and 3 is a knob. Inside the cylinder lock outer cylinder 1, a cylinder lock inner cylinder 2 is installed, and inside the cylinder lock inner cylinder 2,
When the key 4 is inserted, it is housed in a sliding groove 2a provided in the inner cylinder 2, and a tumbler 2b configured to project when the key 4 is removed is incorporated. As shown in FIG. 6- (a), a step wall 1a for restricting the movement of the tumbler 2b in the rotational direction is provided on the inner peripheral surface of the cylinder lock outer cylinder 1, and the engagement point between the step wall 1a and the tumbler 2b is set. Is the locked position. An escape groove 1d that allows the tumbler 2b to move in the rotational direction is provided for a certain length adjacent to the step wall 1a, and the tumbler 2b is housed in the sliding groove 2a when the key 4 is inserted and rotated, and after passing through the step wall 1a. Even if the key 4 is removed, the re-projected tumbler 2b is allowed to rotate and the vicinity of the starting point of the escape groove 1d that enables the cylinder inner cylinder 2 and the knob 3 to operate is the locking position. As shown in FIGS. 1 and 3, a knob 3 is fitted on the outer periphery of the cylinder lock outer cylinder 1 from the end 2c side of the cylinder lock inner cylinder 2, and the knob 3 and the cylinder lock inner cylinder 2 form a cylinder. It is connected by a pin 5 via a peripheral groove 1b provided on the outer periphery of the lock outer cylinder 1 and is fixed in the axial direction and the rotation direction. The circumferential groove 1
b, when the cylinder lock inner cylinder 2 rotates in conjunction with the knob 3, as shown in FIGS. 5 and 6, within the range of the escape groove 1d from the locking position of the cylinder lock, The pin 5 has such a length that it can be guided over a position corresponding to the rotation distance of the cylinder inner cylinder 2 that is sufficient to open, and the end of the circumferential groove 1b is the door opening position. As shown in FIGS. 1 and 2, a return spring 6 is provided on the end 1c of the cylinder lock outer cylinder 1.
As shown in FIG. 7, the end portion 2d of the cylinder inner cylinder 2 extends from the unlocked position (FIG. 7- (b)) to the door open position (FIG. 7- (c)). One end 6a of the return spring 6
The cylinder lock inner cylinder 2 which is engaged with and is rotated from the unlocked position to the door opened position by the biasing force of the return spring 6 is automatically returned to the unlocked position. In FIG. 1, reference numeral 7 denotes a cam plate which swings by rotating the knob 3 to open the opening / closing body.

Next, the operation of this device will be described.

In FIG. 4, the position of the solid line of the knob 3 is the locked position, the position of the one-dot chain line is the unlocked position, and the position of the two-dot chain line is the open position. At the locked position, as shown in FIG. 6- (a), the tumbler 2b in the cylinder lock inner cylinder 2 is blocked by the step wall 1a provided on the inner peripheral surface of the cylinder lock outer cylinder 1, so that the cylinder lock The knob 3 connected to the tube 2 via the pin 5 does not rotate clockwise. The key 4 is inserted into the cylinder lock inner cylinder 2, the cylinder lock inner cylinder 2 is rotated to the unlocked position shown in FIGS. 4 and 6- (b), and the tumbler 2b projects when the key is removed. Since the clearance groove 1d is provided on the inner peripheral surface of the cylinder lock outer cylinder 1 from the unlocked position to the door open position, the rotation of the tumbler 2b is not restricted, and the knob 3 rotates clockwise. When it is possible to rotate from the unlocked position to the door opened position, the cylinder lock inner cylinder 2 connected via the knob 3 and the pin 5 is also opened from the unlocked position as shown in Fig. 5 (b). Since the cam plate 7 provided on the rear end of the cylinder lock inner cylinder 2 swings to the position, the opening / closing body such as the trunk lid and the rear door can be opened.

(Effect of the Invention) In the present invention, the knob is attached to the front end of the cylinder lock as described above, and the cam plate arranged at the rear end of the cylinder lock is rocked by the knob operation to open the trunk lid, the rear door, and the like. Therefore, if it is unlocked, there is an excellent effect that the trunk lid and the like can be opened without operating the keys only by operating the knobs.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a left side sectional view of a cylinder lock with knob according to the present invention, FIG. 2 is a left side view of a cylinder lock with knob, and FIG. 3 is a perspective view when assembling the cylinder lock. 4 is a front view of FIG. 2, and FIG. 5 is a sectional view taken along line AA of FIG.
(a) is the locked position and (b) is the unlocked position. FIG. 6 is a sectional view taken along the line BB in FIG. 2, in which (a) is a locked position and (b) is an unlocked position. FIG. 7 is C- of FIG.
It is C sectional drawing, (a) is a locking position among them, (b) is an unlocking position, (c) is an opening position. 1 ... Cylinder lock outer cylinder, 1b ... Circumferential groove 2 ... Cylinder lock inner cylinder, 3 ... Knob 4 ... Key, 5 ... Pin 7 ... Cam plate

Claims (1)

[Scope of utility model registration request] 1. A sliding groove (2a) is provided on an outer cylinder (1) of a cylinder lock.
A cylinder lock inner cylinder (2) containing a cylinder and a tumbler (2b) is incorporated, a cam plate (7) is attached to one end (2d) of the cylinder lock inner cylinder (2), and a cylinder lock outer cylinder (1) is attached to the cylinder. The knob (3) is externally mounted from the end surface (2c) side of the lock inner cylinder (2) and fixed to the cylinder lock inner cylinder (2) by a pin (5), and is attached to the inner peripheral surface of the cylinder lock outer cylinder (1). Adjacent to the step wall (1a) is a point where the step wall (1a) is provided and engaged with the protruding tumbler (2b) to inactivate the cylinder lock inner cylinder (2) and the knob (3). Then, an escape groove (1d) having a constant length is provided, and the tumbler (2b) is housed in the sliding groove (2a) by the insertion and rotation of the key (4), and the step wall (1
After passing through a), even if the key (4) is removed, the re-projected tumbler (2b) is allowed to rotate and the cylinder lock inner cylinder (2) and knob (3) can be operated. And the tumbler (2b) on the peripheral wall of the cylinder lock outer cylinder (1).
A cylinder lock inner cylinder (2) sufficient to open the opening / closing body within the range of the escape groove (1d) from the engaging position of the step wall (1a)
The peripheral groove (1b) for guiding the pin (5) of the knob (3) is opened to a position corresponding to the turning distance of the peripheral groove (1).
The end of b) is set to the door open position, and the knob (3) is rotated along the circumferential groove (1b) from the unlocked position to the door opened position, so that the cam plate is inserted through the cylinder lock inner cylinder (2). A cylinder lock with a knob, wherein (7) swings to open the opening / closing body.